/*
 * Copyright 2024 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package androidx.compose.ui.inspection

import android.view.View
import android.view.inspector.WindowInspector
import androidx.compose.ui.inspection.util.ThreadUtils
import androidx.inspection.InspectorEnvironment

class RootsDetector(environment: InspectorEnvironment) {
    private val xrHelper = XrHelper(environment)

    fun getRoots(): List<View> {
        val xrViews = xrHelper.getXrViews()
        return xrViews.ifEmpty { getAndroidViews() }
    }

    fun getAllRoots(): List<View> {
        return xrHelper.getXrViews() + getAndroidViews()
    }

    private fun getAndroidViews(): List<View> {
        ThreadUtils.assertOnMainThread()
        val views = WindowInspector.getGlobalWindowViews()
        return views
    }
}
